:root {
  --fc-nav-z-shell: 1000;
  --fc-nav-z-overlay: 999;
  --fc-nav-brand-delay: 0.6s;
}

.fc-nav-shell {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.6rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  z-index: var(--fc-nav-z-shell);
  mix-blend-mode: normal;
}

.fc-nav-brand {
  display: inline-flex;
  align-items: center;
  pointer-events: auto;
  width: calc(clamp(150px, 18vw, 260px) + 5px);
  filter: drop-shadow(0 12px 30px rgba(0, 0, 0, 0.65));
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  margin-top: -30px;
  margin-left: 50px;
}

.fc-nav-brand img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.fc-nav-brand.fc-nav-brand--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hide brand when page requests it (e.g., to avoid overlap with left-side headings) */
.fc-brand-hidden .fc-nav-brand.fc-nav-brand--visible {
  opacity: 0 !important;
  pointer-events: none;
  transform: translateY(-20px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.fc-nav-actions {
  display: flex;
  gap: 1.2rem;
  align-items: center;
  pointer-events: auto;
}

.fc-nav-hamburger {
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(14, 17, 23, 0.6);
  backdrop-filter: blur(12px);
  transition:
    border 0.3s ease,
    background 0.3s ease,
    backdrop-filter 0.3s ease,
    transform 0.3s ease;
  pointer-events: auto;
  color: rgba(255, 255, 255, 0.85);
  transform: translateY(-70px);
}

.fc-nav-hamburger:hover,
.fc-nav-hamburger:focus-visible {
  border-color: rgba(28, 125, 255, 0.65);
  background: rgba(28, 125, 255, 0.18);
  outline: none;
}

.fc-nav-hamburger-lines {
  display: flex;
  width: 1.4rem;
  height: 1.4rem;
  position: relative;
  align-items: center;
  justify-content: center;
}

.fc-nav-hamburger-lines span {
  width: 1.4rem;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  position: absolute;
  transition: transform 0.35s ease, opacity 0.35s ease;
}

.fc-nav-hamburger-lines span:nth-child(1) {
  top: 0;
}

.fc-nav-hamburger-lines span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.fc-nav-hamburger-lines span:nth-child(3) {
  bottom: 0;
}

.fc-nav-hamburger.fc-nav-hamburger--active span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.fc-nav-hamburger.fc-nav-hamburger--active span:nth-child(2) {
  opacity: 0;
}

.fc-nav-hamburger.fc-nav-hamburger--active span:nth-child(3) {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

.fc-nav-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: flex-end;
  pointer-events: none;
  background: transparent;
  z-index: var(--fc-nav-z-overlay);
  transition: background 0.4s ease;
}

.fc-nav-overlay[aria-hidden="false"] {
  pointer-events: auto;
  background: rgba(0, 0, 0, 0.35);
}

.fc-nav-overlay-panel {
  width: min(680px, calc(33vw + 120px));
  min-width: 360px;
  height: 100vh;
  background: #030303;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.8);
  padding: 8rem 4rem 4rem;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

body.fc-nav-open {
  overflow: hidden;
}

body.fc-nav-open .fc-nav-overlay-panel {
  transform: translateX(0);
}

.fc-nav-list {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.fc-nav-item {
  color: rgba(255, 255, 255, 0.87);
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  position: relative;
  transition: color 0.3s ease;
}

.fc-nav-item:hover,
.fc-nav-item:focus-visible {
  color: #ffffff;
  outline: none;
}

.fc-nav-item::after {
  content: "";
  position: absolute;
  bottom: -0.6rem;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(28, 125, 255, 0.3) 10%,
    rgba(28, 125, 255, 0.8) 50%,
    rgba(28, 125, 255, 0.3) 90%,
    transparent
  );
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fc-nav-item:hover::after,
.fc-nav-item:focus-visible::after {
  transform: scaleX(1);
}

.fc-nav-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
}

.fc-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 768px) {
  .fc-nav-shell {
    padding: 1.2rem 1.6rem;
  }

  .fc-nav-brand {
    width: calc(clamp(140px, 50vw, 200px) + 5px);
  }

  .fc-nav-overlay-panel {
    width: 100%;
    min-width: 0;
  }
}